Internet data center (IDC) refers to a well-equipped platform (including high-speed Internet access bandwidth, high-performance LAN, safe and reliable computer room environment, etc.). ), professional management and perfect application services.

On the basis of this platform, IDC service providers provide customers with basic Internet platform services (server hosting, virtual hosting, mail caching, virtual mail, etc.). ) and various value-added services (venue rental services, domain name system services, load balancing systems, database systems, data backup services, etc. ).

Basic architecture of Internet data center:

1, Internet access layer: responsible for interconnection with CMNET, ensuring high-speed Internet access in IDC intranet, gathering convergence layer switches in the network, converting routing information between IDC intranet and extranet, and maintaining IDC network architecture.

2. convergence layer: Downward, the service access layer switch is responsible for gathering multiple service areas, and upward, it is interconnected with the core router. Some security devices are deployed at this level to protect the internal network. Large customers or key enterprises can directly access the convergence layer switch.